1. Device Identification & General Information:

· Product: LED BarGraph Display
· Model: BL-AR02Z1407
· Manufacturer: Betlux (from the website address)
· Revision: V.2 (Indicated on the approval stamps)
· Important Note: Specifications are subject to change without notice.

2. Package & Mechanical Details:

· Dimensions: All dimensions are in millimeters (inches).
· Tolerance: +/- 0.25 (0.01") unless otherwise specified.
· (There's a diagram on page 3, which is not able to be displayed here, but crucial for physical construction).

3. Electrical & Optical Characteristics:

· Forward Voltage (Vf): The curves illustrate the relationship between forward voltage and forward current.
· Relative Luminous Intensity vs. Wavelength (λp): This shows how the light output varies with the wavelength (color). Specific materials used for different colors are listed in the "NOTE".
* GaAsP/GaAs 655nm/Red
* GaP 570nm/Yellow Green
* GaAsP/GaP 585nm/Yellow
* GaAsp/GaP 635nm/Orange & Hi-Eff Red
* GaP 700nm/Bright Red
* GaAlAs/GaAs 660nm/Super Red
* GaAsP/GaP 610nm/Super Red
* GaAlAs 880nm
* GaAs/GaAs & GaAlAs/GaAs 940nm
* GaN/SiC 430nm/Blue
* InGaN/SiC 470nm/Blue
* InGaN/SiC 505nm/Ultra Green
* InGaAl/SiC 525nm/Ultra Green
· Forward Current vs. Ambient Temperature: Shows how the maximum allowed forward current changes with temperature.
· Forward Current vs. Refresh Rate (Frequency): The charts indicate performance limits at various refresh rates (100KHz down to 300Hz). The faster the refresh rate, the lower the allowable current.
· Peak Forward Current: Maximum current for short pulses.
· Reverse Voltage: Maximum reverse voltage.

4. Absolute Maximum Ratings (Derived from data):

These are the key limits that *must not* be exceeded. I've compiled them from the charts and tables. *Remember to consult the full datasheet for a comprehensive list.*

Parameter	Value (Typical)	Unit
Forward Voltage (Max)	Varies by color (See Curves)	V
Peak Forward Current (Max)	100 - 150	mA
Reverse Voltage (Max)	5	V
Operating Temperature	-40 to +80	°C
Storage Temperature	-40 to +85	°C
Pulse Duration	Varies (See Graph)	us
Forward Current (at various temperatures)	Dependent on temperature and refresh rate.	mA

5. Important Notes:

· The datasheet provides graphs for several key characteristics.
· Free air temperature is the default for specifications. Performance changes with temperature.
· The graphs and tables provide a lot more detail, including values for specific colors and currents.
· Always consult the *complete* datasheet for a full list of specifications and warnings.

What's missing or would benefit from clarification:

· A proper full table of absolute maximum ratings. This would combine all the numeric limits from the various graphs.
· Typical values. The documents mostly provide maximums, but typical values are essential for design.
· Detailed explanations of the graphs: The data is there, but it's not explicitly explained which lines represent what.